Wrench for demountable rims and the like.



' J. H. WAGENHORST.

WRENCH PoR DEMOUNTABLE MMS AND THE LIKE.

APPLICATION FILED JUNE 10, 1912.

1,078,567.. Patented Nov. 11,1913.

NGS;

minimi JAMES H. WAGENHORST, OF AKRON, OHIO, ASSGNQR, BY MESNE ASSIGNMENTS, OF

TWO-FIFTHS TO THE B. F. GOODRICH COMPANY, OF NEW YORK, N. Y., A. CORPORA- TION OF NEW YORK, ONE-FIFTH TO THE GOODYEAR TIREv da RUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO, AND ONE-:FIFTHl TO THE UNITED STATES TIRE COMPANY, OF NEW' YORK, N. Y., A CORPORATION OF NEW YORK.

WRENCH FOR DEMOUNTABLERIMS AND THE LIKE.

amener.

Specification of Letters Patent.

Patented Norel l, i913.

Application led .Tune 10, 1912. Serial No. 702,358,

' -Wreno-hes foriDemountable Rims and :the

like, of which the followingl is -a specificati Jn.

This invention relates to an improved wrench -or \too1 particularly adapted for operating thel radial studs used as the securingy means in a eertainform of demountable rim constructionv of my'inivention. In "rims ofthistype the wheel periphery' is provided witha seat or seats for the tire-carrying rim, radial studs being carried by the wheel at intervals Iand extendingthrough the telly into engagement with the under-surface of the rim. `Screw-threaded means are pro` 'vided for-adjusting the studs' radially to clamp the rim upon the wheel or to-release ,the same therefrom rfor example, the studs mayr be provided with screw-threaded stems screwing through plates fastened to the -under-surface,oil the wheel felly. In this case it--will be seenlthat the studs must be rotated about axes radial to the wheel and.`

proved wrench applied to the head ol a i -radial stud carried by the wheel; lug. il

is a transverse section upon an enlarged scale oi the hase oliihe lire, the tire-carrylng run.

wheel telly and 'Felly band, showing one of,

the radial stpds lor securingthe rim upon the telly beg/nd, and illustrating the end of my in'niroverl` wrenclijengaging `the head of theiraniialftitud. the socket member of the wrench and the bearings for the trunnions being shown in section; Fig, 8 isa plan view of the end of the wrench; Fig. 4 is an edge elevation of the end of the wrench; FigA 5 is a transverse sectional view througha portion of the wheel felly andthe end ofthe wrench applied toithemadial stu-cl showing the wrench and stud-turned fromthe position shown in Fig. 2 Va quarterA of afrevolution; Figa@ is a plan view of the end of a modiiediferm of wrenchgrliigi isa View showing vthe endof thelwrench of the form illustrated inFig. 6 applied 'to a radial stud; Fig. 8 is.a view'isimilar to Figa? showing the wrench and stud: turned through a quarter of a revolution,.the end of thewvrench being shown. in section.

Referring: to thedrawings in detail, and particularly` to Figsal to 5, inclusive, the numeral l designates 'my improved wrench which comprises the `shanlrQ:having the 'handle- 3 thereon anid the crank arm 4 carrying the handle'. `Tl1e\end offthe shank 2 is forined'into a forkrliaving. the perforated arms 6. ln the-holes Aini-these arms are journaled Ythe tnunnions 7 fofthe .socket member Soi' the wrench. :Theshape of the socket in this socket member will depend upon the shapeofthe vbolt-head or :nut which it is inten'ded to engage. As shown in the. drawings,themvreneh is designed .to turn a studi) passing;radially'through the lellyil() of-a `wheel 11.

l2 isthe ellylhand of the wheeL-'which has a holetherein through which the end of the stud passes, the, end of the studf be. ing received in a socket lformed in the aunder-surface of the tire-carrying rim 14.

lhe stud 9 has a screw-threaded stein l5 which screws through a plate lG scoured lo the wheel telly. The end oi" the stem 15 squared to provide a head l? adapted to he engaged by the wrench. In order to engage this` head the sockel nlen'lber of the wrench has anelongated socket 'i8 formed therein of a. widthto tit this head. Therrnd'ial .stud may also cai-r)Y a leek-nut lil' which serres to limit the radial outward movement of the sind and which it is usually desired to mairttjiiiiiin a lixed position on the stud. lltis accordingly desirable to form the Wrench so that it will rotate the stud and lock-nut together. For this purpose the socket member of the Wrench is provided with a second and larger socket 2O to receive the lock-nut. This socket 2O is formed between the -side Walls 21 of the socket member, the edges of these side Walls being preferably conveXly lcurved as indicated at 22 in F ig. 2, and constituting bearing lsurfaces adapted to contact with the plate 16, it one be used, or its equivalent part. Both the sockets 18 and 2O are sutliciently long to permit the socket member of the Wrench to tilt through a considerable angle, preferably somewhere near ninety de grecs, about an axis at right angles to the axis of the ytrunnions 7 --When this tilting takesplace the lock-nut and head of the stud slide between the Walls of their respective sockets, the curved edges of the side Walls 21 bearing against the plate'16 and supporting the end of the Wrench. It will be seen that by the arrangement described I have secured the action of a universal joint but by a simplication of the parts.

As the operator who support the Wrench by means of the handle 3 rotates the same by turning the crank fi, the socket will be turned from the position shovvn in Fig. 2 to the position shown in Fig. 5. ln the latter position the socketmember is tilted upon the stud head and lock-nut until the axis ofthe trunnion 7 is at right angles to the axis of the stud. The socket member is, however, turned upon its t-runnions until it is at an angle to the shank of the Wrench as shown in Fig. 5. rIthe further rotation of the Wrench will bring the parts again` into the relative positions shown in Fig'. 2, but With the socket member the other side up. rlhus it will be seen that ,during each rotation of Vthe Wrench the socket member will slide from one limit of its position upon the nut and stud head to the other limit and back again, While the socket member is simultaneously turning about its trunnions. As the Wrench can be applied to the radial stud at an angle as shown in Fig. 1, it can be freely operated troni one side of the Wheel. By making the shank of the-Wrench long, the handles for the operator are carried beyond the' hub of the Wheel and plenty ot' room for the rotation of the crank arm 4 is provided.- It will be understood, of

. course, that a regular brace for turning the shank may be used if desired. rlhe end of the shank 2 near the fork is preferably dattened, as shown at 23, this flattened portion having sockets 2A andy25 formed therein adapted to engage the lock-nut and the head of thestud, respectively. it it is desired to adjust the nut upon the stud or it' the nut or stud becomes rusted, so that an unusual eitort is required to turn them, the sockets 24 or E25-may be engaged with the nut or invase? head of the stud, as the case 'may be, and the nut 'or stud turned through a limited angle, using the shank of 'the wrench as a lever arm. After the stud and nut have been started, the wrench may be applied thereto in the usual manner, as shown in Figs. 1 and 2. The socket 25 may also be used, if it is desired to screw up the stud very tight after it has been operated by the socket member oftheiwrench.

ln Figs. 6, 7 'and 8 l have shown a moditied form of my invention in which the end -ot the stud 26 is provided with a kerf 27.

In this case the Wrench carries in its fork a flattened blade 28 adapted to enter the kerf,the blade being mounted upon trunnions 29 which are received in the bearings in the arms 6 of the fork. The blade 28 has a curved edge or bearing surface 30 adapted to bear upon the bottom of the kerf 27 or upon the top of the lock nut 31, if one is used, as the case may be. In this modification frictional engagement with the stud is relied u on to turn the nut, the socket 24 being use to engage the same in case it sticks or requiresv adjustment. The'operation of this form of my Wrench is the same 'in principle as that of the form above described. As the shank of the Wrench is turned the blade 28 slides in the kerf in the end of the stud and also pivots upon its A trunnions. 9

While l have described my Wrench as particularly applicable to the rotation of radial studs 'for securing demountable rims upon Wheels, l do not wish to limit my invention y exclusively to use in that connection, as my Wrench obviously may be used advantageously wherever it is necessary to operate at an angle to the axis of rotation of the thing to be turned.

Having thus described certain preferred embodiments of my invention, but Without desiring to limit myself to theidetails set forth any 4further than as specied in certain of the more limited claims hereunto appended, I claim:

l. A Wrench comprising a shank and' means ,for rotating the same, and a member for engaging the article to be turned, 'said member being pivoted directly to thev shank to turn about an axis substantially at ri 'ht angles thereto, said member being capa le of tilting upon the article to be rotated While in engagement therewith, in a plane passingv through the axis of t-he pivotal connection between said member and the shank and through-the axis oi rotation oi the article.

to be turned.

2. A Wrench comprising a shank and means for rotating the same, said shank terminating in a fork, and a member for engagingthe article to be rotated pivoted between the 'arms of said fork, said member having a convexly curved bearing sur-tace.

Y 3. A socket Wrench comprising `a shank and mea-ns for rotating the same, and a soeket member pivoted to the end of said shank to .turn about an axis substantially at right angles to the shank, said socket member having an elongated socket therein adapted tdv engage the nutl or bolt to be turned between its sides, but to permit tilting of the socket member upon the nut or bolt in aV plane passing through the axis of rotation of' the nut or bolt.

4. A socket Wrench comprising a shank meansifer rotatinfr the same, said shank terminating in a fork, and a socket member pivoted between the arms of said fork, said socket member having an elongated socket @omet et time patent may be therein, the outer edges of the side Walls of said mem-ber being convexly curved.

5. A socket Wrench comprising a shank and. means for rotating the same, said shank terminating in a fork, and a socket member pivot-ed between the arms of said fork, said socket member having two lsuperilnposed elongated sockets therein, the outer of which is the larger, the outer edges of the side Walls of the socket member being convexly curved.

JAMES Witnesses:

SEWARD DAVIS, EDM-UND QUINOY Moses.

n. Waenunousr.

obtained for ve cents each, by addressing the tommiseioner of Patent, 

